Fastening inserting machine



FASTENING. INSERTING MACHINE Filed Jung 16, 1938 2 Sheets-Sheet 1 Jim1940- A. R. SCHOENKY 2,186,046

FASTENING INSERTING MACHINE Filed June 16, 1938 2 Shets-Sheet 2 //v VEA/727R 49 45 if W6;- %6%,

Patented Jan. 9, 1940 UNITED STATES PATENT OFFICE or to United ShoeMachinery Corporation,

Borough of Flemington, N. J., a corporation of New Jersey ApplicationJune 16, 1938, Serial No. 214,065

. 2(1Claims.

This invention relates to machines for inserting-fastenings in shoes orshoe parts and isillustrated herein as embodied in a machine of the Itype shown in Letters Patent of the United States 5 No. 1,702,364,granted February 19, 1929 on an application filed in the name of ArthurF. Pym.

It is an object of the invention to provide an improved work positioningmeans which will find special application in machines of the type shownin the above-mentioned patent. It is to be understood, however, th'attheinvention and various important features thereof may have otherapplications and uses. More specifically, it is an object of theinvention to provide a work position- 1 mg means which will beunyielding in an upward direction to predetermine the location of. awork piece with relation to a fastening inserting mechanism, andflexible or yielding in a lateral direc:

v tion in such manner that the location of fastenings in successive Workpieces may be varied at the will of the operator without changing theangle at which the fastenings are driven into the work pieces.

It is an important feature of the invention that means is providedforlocking a work positioning 1 means in operative position after it hasbeen moved into such position by manually operable means provided forthat purpose. Through manual control of the work positioning means,

the work of the operator is faciliated in securing proper engagement ofthe work positioning means with a given work piece in presenting thelatter for the insertion of a fastening. Furthermore, by locking thework positioning means in its oper- 'ative position, the latter becomesoperative to locate the work piece in a predetermined relation to thefastening inserting mechanism.

Another important featured the invention resides in the provision of aflexible work position- 40 ing means which enables the operator tovarythe location of successive fastenings in a succession of work pieceswithout tipping any work piece out of a iven plane common to all thework pieces presented .for the insertion of fastenings, this variationin the location of the fastenings being accomplished While the workpositioning means maintains control of each work piece. Such aconstruction is particularly advantageous in operationswhich involve thedriving of fastenings to secure .a succession of insoles to a given lastsince, if too many fastenings be driven in one location in the lastbottom, an enlarged hole will be formed, ending in failure of the lastto 5 hold the fastenings. By enabling theyoperator w ir to'vary thelocation of successive fastenings, the

usefulness of the last is prolonged.

In a preferred construction, two pivotal con- 'nections are providedbetween the Work positioning means and its operating member so that theformer may be moved by pressure on the work piece to change the point ofinsertion of a fastening while the work positioning means maintains thesame angular relationship to the work piece engaged thereby. It followsthat all fastenings 10 are inserted at the same angle, preferablynormal, to the surfaces of the Work pieces while they are under controlof the work positioning means.

With the above and other'important objects and features in view, theinvention will now be ,15 described with reference to the accompanyingdrawingsand'will thereafter be pointed out more particularly in theappended claims.

In the drawings, 'Fig. 1 is'a front elevation of a portion of the 20head of the machine embodying the present invention, parts of the head,being broken away and in section;

I Fig. 2 is a side elevation of the machine on a smaller scale withparts broken away and'in'sec- 25 tion, the machine being shown operatingon an insole and. last; I 1 Fig. 3 is an enlarged detail view of theoperating instrumentalities illustrated in Fig. 2 with parts broken awayand in section; and Fig. 4 is a view of the bottom of th the insoletacked thereon.

The invention is illustrated herein as embodied in a fastening insertingmachine of the so last with type disclosed in Letters Patent of theUnited 35 States, No. 1,106,393, granted August 11, 1914, on anapplication filed in the name of Fred L. Mac- Kenzie, to which referencemay be had for }a more complete description of themachine. The head ofthe machine is provided with a main driv- 4o ing shaft I0 carrying apulley l2 and a plurality of cams for operating different mechanismssome of which will be referred to hereinafter. Atits 'for-' ward end themachine head is provided with a nozzle I4 which receives fastenings suchas tacks and through which a driver 16 reciprocates to drive the tacksinto the Work, the driver being carried by a driver bar l8' which ispropelled downwardly to drive a tack by a torsionspring 20 (Fig.2). Thedriver bar 18. reciprocates' in a vertical guideway in the head of themachine audit is moved upwardly intov inoperative position by a cam 22having a projection 23 thereon which engages a lug 24 formed on thedriver bar.

.Forwardly of the driver bar LIB the machineis provided with a secondvertical guideway 26 in which reciprocates another bar 28, the lower endof this bar projecting out of the guideway and being enlarged, as shownin Fig. 1. A vertical slot 30 is formed in the enlarged portion of thebar 28 to produce depending ears 32, 34. Straddling the ear 34 is asupporting member 36 which is pivotally secured to the ear by ahorizontal pin 38, this pin also extending through the ear 32 and beingprovided with a head 10. A tension spring 42, connected at its lower endto the head 40 of the pin and at its upper'end tosa pin id mounted inthe frame of the machine acts constantly to urge the bar 28 into itsuppermost or inoperative position, this position being de'ter mined byshoulders 46 formed on the enlarged portion of the bar and arranged tocontact with a surface 4-8 on the machine head.

The bar 26 is moved downwardly into .operative position against theaction of the spring 42 by a lever50 pivoted on a stud52 mounted in theside of the machine and connected at 5a to a treadle rod 56. The lowerend of the treadle rod is pivotally connected by a pin 58 to an arm 66formed on a treadle 62, the treadle being pivoted on a shaft 66 locatedin the base of the machine. The forward end of the iever'60 is pivotallyconnected by a pin 66 to the lower end of a link'fiS having its upperend extending into the slot tit-and pivotally connected .to the bar 28by the pin 38.

The lower portion of the supporting member 36 is bifurcated to formdownwardly extending arms 70 which carry a horizontal pin '52. Pivotedon this pin between the arms 10 is a carrier member M provided with anupwardly extending projection or lug l6 and having at its lower side ahorizontal plate-like portion '18 extending widthwise of the machine.Mounted in the plate 18 near its opposite ends are downwardly projectingpins 80 the lower portions of which are reduced in size and rounded, asshown in Figs.

1 and 3. The pins 80 serve as means for positioning an insole on thebottom of a last and for holding the insole and last in proper relationto each other while the fastening inserting instrumentalities of themachine drive a tack through the insole and into the last.

As shown in Figs. 2 to 4, inclusive, the insole and last, indicated inthose figures by the numerals 82 and 84, areprovided respectively, attheir foreparts and preferably'at points located about midway betweenthe toe end and the break or ball line of a shoe, with openings or holes86, 88, the holes in one member registering with thosein the other andcorresponding in location and size to the positioning pins .88.

The positioning of two or more work pieces by pins similar to the pins80 arranged to enter corresponding holes in the work pieces, isdisclosed'in the Pympatent mentioned above and, accordingly, is notclaimed herein, the present invention, as stated, being directed morepar ticularly to improvements in mechanisms for operating and otherwisecontrolling the pins.

It will be seen from the foregoing that the pins 80 may be moveddownwardly relatively to the tack nozzle l4 into a position in which theholes 86, 88 in theinsole and last can be engaged by the pins. As shownin Figs. 2'and 3, this position is preferably such that the toeportionof the insole 62 will contact'with the nozzle I4 when the surface of theinsole is substantially horizontal. Moreover, by reason of the twopivots 38,

12, the pins may be moved toward or away from the nozzlewhile they arelocated in-the' holes and while they are maintained in a substantiallyvertical position, or in a position which is normal to the plane of theinsole.

The pins may be tilted or tipped somewhat if necessary during operationand while still engaging the work, this tipping movement being limitedby relatively fiat surfaces Q6, 92 (Figs. 1 and 3) formed at slightangles to each other on the lower sides of the arms '56 of thesupporting member 36 and arranged to engage the upper surface of theplate '58 on the carrier member it and .thus limit the tipping movementof the pins. As illustrated in Fig. 3, the pins 36 have been movedinwardly toward the nozzle so that a tack .94, which. has been driventhrough the insole and into the last, has been located in a morerearward position in the last than it would have been located had thepivots 38 and H! been'more nearly in vertical alinement.

The supporting member 36 and the carrier member 14 are normally held ina position in which the centers of-the pivot pins 38 and i2 lie in aplane that is slightly inclined relatively to the vertical and, when notoperating, thepins 86 are located in a substantially vertical position.This is accomplished by a spring 96 having one end located in a recessformed in the projection 16 on the carrier member '54 and having itsother end seated in a similar recessformed in the lower end of adownwardly projecting arm 93 integral with the bar 28' and fixedrelatively to the supporting member 36, the spring 96 urging the carriermember M in a clockwise direction, as viewed in Figs. 2 and 3, andurging the supporting member 36 in an opposite direction until ingsubstantially perpendicular to the plane of the insole. When the pinsare withdrawn from the insole and last they snap back automatically totheir initial vertical position under the action of the spring 96 ifthey have been tipped out of I such position by tipping of the lastbottom out of the horizontal during the tacking operation.

As indicated above, it'is desirable to maintain thepins 80 positively intheir lower or operative position when they are engaging the insole andlast and while a tack is being driven. Accordingly, there is provided inthe head of the machine, adjacent to the bar 128, a latch me pivoted ona pin I02 mounted in the frame of the machine and having a downwardlyextending portion I04 arranged to engage a notch 1% formed in the bar23, the shapes of the notch and latch being such that the bar will belocked against upward movement when the latch is engaging the notch. Thelatch has an upwardly extending arm carrying a roll me which extendsrearwardly through an opening in the frame and is located in the path ofthe projection 23 on the cam 22, this projection having an inner curvedsurface H39 so shaped that, when the cam is rotated one revolution, thissurface will engage the roll l08 during the latter part of the rotationand swing the latch in a counterclockwise direction, as viewed in Fig.1, to withdraw the portion I04 of the'latch from the notch I06, therebyAll . 2,186,046 unlocking the bar 28 and permittingthe' tension "in,-saidwork positioning means being movable spring .42 to return itautomatically toits uppermost position determined bythe stop surfaces".

.The latch is, normally urged in a clockwise direction about the pivotI02 by a plunger IIO mounted in a boss I I2 formed on the head of themachine, this plunger being forced against the latch by a compressionspring I III mounted in an opening in the plunger and retained in theboss by a cap. screw II 6.

As described in the Pym patent referred to,

the machine'is arranged to operate through one completecycle and thencome to rest, each'cycle actuating the driver once to insert a fasteningin the work. The machine is operated by a onerevolution clutch,indicated generally in Fig. 2'

by the reference numeral II 8, and the clutch is tripped by a startingtreadle I20 pivoted at I22 in the base of the machine. Accordingly, in

tacking the insole 82 to the last 84, the operatorv first depresses thetreadle 62 to lower the pins 80 into their operative position whichacwardly or rearwardly as desired relatively to the nozzle I4 and thuslocates the insole in what-' ever position he Wants the tack to beinserted in the last. I

The operator depresses the treadle I20 to start the machine, therebyinitiating rotation of the driver cam 22 and descent of the driver todrive a tack. Continued rotation of the cam 22 in completing the cyclemoves the latch I00 automatically out of the engagement with the bar 28by reason of the curved surface I09, thereby permitting the tensionspring 42. to return the bar and pins 80 to their inoperative position.It will be seen, therefore, that the positioning pins are locked againstupward movement during the relativepositioning of the insole and-lastand during the driving of the firsttackinto the toe end of the insole.After the tack has been driven, the latching means isautomatically-released and the bar 28 and pins 80 are moved upwardlyaway from the last and insole and into their inoperative positions sothat they will not interfere with the driving of other tacks required tosecure the insole to the last bottom, these other tacks usually beinglocated adjacent to the ball line and at the heel end of the insole andbeing indicated in Fig. 4 by the numerals I24, I26. During the drivingof these remaining tacks the operator holds the rear portion of theinsole by hand inproper position on the last bottom, the longitudinaland lateral positions of the foreparts having been fixed by the forwardtack 94. When it is desired to position another insole on the lastbottom the operator again depresses the treadle 62 to lower thepositioning pins 80 into operative position where they become locked,as: described above.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A fastening inserting machine having mechanism for inserting in Workpieces a succession of fastenings, work positioning means arranged toengage a plurality of alined openings in each of a plurality of workpieces to hold said work pieces in predetermined relation to each otherduring the insertion of a fastening thereheightwise relatively to thefastening inserting mechanism from an inoperative to an operativeposition, means for positively maintaining said positioning meansinoperative position after it hasbeen moved into. such position, and meansber toengage and hold .a work piece against displacement duringinsertion of a fastening therein, means for' positively maintaining saidpositioning means in operative position after it has been moved intosuch position, and means for returning said positioning means to itsinoperative position in timed relation to the operation of said.fastening inserting mechanism.

3. A fastening inserting machine having mechanism for insertingasuccession of fastenings in a work piece, said mechanism comprising adriver bar reciprocable in the machine head, work positioning meanscomprising a bar reciprocable in the machine head'substantially inparallelism to the driver bar and having at one end members arranged. toengage and hold a work piece against'displacement both laterally andlongitudinally of an axis thereof duringv the insertion of a fasteningtherein, a latch member for positively maintaining said positioningmeans in operative position after it has been moved into .such position,and means comprising a spring for returning said positioningmeans to itsinoperative position in timed relation to a fastening insertingoperation.

4. A. fasteninginserting machine having, in combination, mechanism fordriving fastenings through a shoe part and into a last upon which theshoe'part i s'mounted,.means movable into operativeengagement with boththe shoe part and the lastat a plurality of points forpositioncombination, means movable. heightwise of the.

machine for positioning an insole on the bottom of a lash-mechanism fordriving fastenings throughthe insole and into the last tohold the insoleon the last bottom, manually operated means for moving the positioningmeans heightwise into operative position relatively to the drivingmechanism, a latch for maintaining, said positioning meanspositively insaid operative position until after a fastening is driven, and

means for automatically withdrawing said positioning means fromoperativeposition.

6. A fastening. inserting machine having, in

combination, means arranged toengage an insole inwardly of its edge faceand position it on the bottom of a last, mechanism for drivingfastenings through the insole and into the last ,to

-hold the insole in position on the last, means for moving thepositioning means relatively to the driving mechanism to bring saidpositioning means from an inoperative into an operative position, meansfor automatically locking said posifor operating said driving mechanism,and means actuated by the operation of said driving mechanism forreleasing said positioning meansand returning it to inoperativeposition. I

7. A fastening inserting machine having, in combination, means forpositioning an insole on the bottom of a last, mechanism for drivingfastenings through the insole and into the last to hold the insole inposition on the last bottom, means for moving the positioning meansheightwise relatively to the driving mechanism to locate the positioningmeans in operative position, spring means tending constantly to urge thepositioning means into an inoperative position, a latch for locking saidpositioning means in operative position after it has been moved intosaid position, and means for automatically releasing said latch topermit the positioning means to be returned to inoperative position bysaid spring means.

8. A fastening inserting machine having, in combination, means arrangedto engage an insole at a plurality of points inwardly of its peripheryfor positioning the insole on the bottom of a last, mechanism fordriving fastenings through the insole and into the last to hold theinsole on the last, means for moving the positioning means heightwiserelatively to the driving mechanism to locate said positioning means inoperative position, means for positively maintaining the positioningmeans in operative position while a fastening is being driven, means foroperating said driving mechanism to drive a fastening, and poweractuated means for removing the positioning means from operativeposition after the first fastening has been driven.

9. A fastening inserting machine having, in combination, means forpositioning an insole on the bottom of a last, mechanism for'driving afastening through the insole and into the last to hold the insole inposition on the last, means for moving the positioning means in arectilinear path heightwise of the driving mechanism to locate thepositioning means in an operative position, separate means for holdingsaid positioning means positively against heightwise movement away fromsaid operative position, means for operating the driving mechanism toinsert a fastening through the insole and into the last bottom, andmeans actuated by the operation of said driving mechanism forautomatically returning .said positioning means to inoperative positionafter one fastening has been driven.

10. A fastening inserting machine having, in combination, means forpositioning an insole on the bottom of a last, mechanism for driving afastening through the insole and into the last to hold the insole inposition on the last bottom, means for moving the positioning meansrelatively to the driving mechanism to locate the positioning means inoperative position, a spring tending constantly to urge the positioningmeans away from operative position, a latch for automatically lockingsaid positioning means in operative position after it has been movedinto such position, and a cam for operating said driving mechanism, saidcam operating also to release said latch after a fastening has beendriven and thereby permit said spring to return the positioning meansautomatically to its inoperative position.

11. A fastening inserting machine having, in combination, a reciprocabledriver bar carrying a driver, a second ,reciprocable, bar carryingmembers for positioning an'insole relatively to a last bottom, manuallyoperated means for moving the second bar relatively to the driver bar toeffect movement of the positioning members .into operative position, alatch for engaging the second bar and looking it in the position intowhich it is moved by said manually operated means, a tension springconstantly urging said second bar into its initial position, a torsionspring for propelling said driver bar to drive a fastening, a cam forreturning said driver bar to its initial position, and means forrotating said cam one revolution, said cam having means thereon forautomatically releasing the latch from engagement with the second bar asthe cam returns insole and last and thereby to position the insole andlast relatively to each other, fastening inserting instrumentalities,means for moving the positioning means relatively to saidinstrumentalities to locate said positioning means in operativeposition, and means for automatically maintaining said means positivelyin operative position while a fastenng is being inserted.

13. A fastening inserting machine having, in combination, a member forposition an insole relatively to a last bottom, said member carrying aplurality of pins spaced from each other and arranged to entercorrespondingly spaced holes formed in the insole and last and therebyposition the insole on the last bottom, mechanism for driving fasteningsinto the insole and last, means for moving the pin member relatively tosaid driving mechanism to locate said member in operative position, alatch for automatically retaining the pin member positively in operativeposition, a spring constantly urging said pin member away from saidoperative position, means for operating the driving mechanism, and meansactuated by the operation of said operating means for releasing saidlatch and permitting said spring to withdraw the pin member fromoperative position.

14. A fastening, inserting machine having, in combination, a headprovided with fastening inserting instrumentalities, means forpositioning a plurality of work pieces relatively to each other to havefastenings inserted to hold them together, said means being arrangedwhen operating to have a predetermined angular relation to the workpieces, a carrier member for said positioning means, means to lock thework positioning means against movement in a vertical direction, andconnections between the carrier member and the machine head whereby thepositioning means and work pieces may be moved laterally relatively tothe fastening inserting instrumentalities to vary the position of thefastenings inserted in different work pieces without changing theangular relation of the positioning means to said work pieces.

15. A fastening inserting machine having mechanism comprising afastening driver for inserting a succession of fastenings in a workpiece, work positioning means arranged to engage a work piece duringinsertion of a fastening therein, said work positioning means beingmovable erally of the fastening inserting mechanism with-' in thedirection of the length of the fastening driver between operative andinoperative positions and. being held unyieldingly in operativeposition, and means for supporting thework positioning means foryielding movement in a direction laterally of the fastening driverwithout changing its angular relationship to the driver, wherebysuccessive fastenings are driven normal to the surfaces of successivework pieces.

16. A fastening inserting machine having, in combination, a memberprovided with pins arranged to fit into corresponding holes in aplurality of work pieces and to position said work pieces relatively toeach other, said pins having a fixed angular relation to the work pieceswhen fitted into said holes, fastening inserting instrumentalities fixedagainst lateral movement, and means for permitting said pins to movelaterally of said fastening inserting instrumentalities without changingtheir angular relation to the work pieces, thereby permitting therelative positions of said instrumentalities and successive groups ofwork pieces to be changed so that the position 'of a fastening driveninto each group may be varied.

17. A fastening inserting machine having, in combination, fasteninginserting mechanism fixed laterally of the machine, means forpositioning an insole and a last relatively to each other to receive afastening tobe driven through the insole and into the last, means formoving and guiding the positioning means on the machine head, saidpositioning means comprising a plurality of pins arranged to fit intocorresponding holes formed in the insole and last and means for carryingthe pins, said carrying means comprising a lower member and pivotalconnections between said member and said moving and guiding meanswhereby the pins may be moved laterally of the fastening insertingmechanism without changing their angular positions in said holes.

18. A fastening inserting machine having, in combination, fasteninginserting mechanism comprising a driver bar reciprocable in the machinehead, a second bar reciprocable in the machine head substantially inparallelism to the driver bar and having a member to engage and positiona substantially rigid work piece for the insertion of fasteningstherein, said member being arranged when in operation to have a definiteangular relation to a surface of said work piece, and two spacedconnections between the second bar and the positioning member carriedthereby for permitting the latter to be moved latout changing theangular relation of said positioning member to the surface on the workpiece, whereby said work piece may bevariously positioned relatively tothe fastening inserting mechanism so that fastenings may be inserted indifferent locations in successive work pieces without tipping any of thework pieces out of a substantially horizontal plane during, theinsertion of the fastenings,

19. A fastening inserting machine having, in combination, fasteninginserting mechanism, means for positioning an insole and a lastrelatively to each other to receive a fastening to be driven through theinsole and into the last, said positioning means comprising pinsarranged to engage corresponding holes formed in the insole and lastbottom and a member carrying said pins, means for moving and guiding thecarrying member on the machine head, pivotal connections between saidcarrying member and said moving and guiding means whereby said pins maybe moved laterally of the fastening inserting mechanism without changingtheir angular relation to the insole and last, and means forreturningdriven through the insole and into the last, said means comprising aplurality of pins arranged to fit into corresponding'holes formed in theinsole and last substantially at right angles to the plane of theinsole, a carrier member for said pins, said carrier member beingmounted for pivotal movement toward and away from the fasteninginserting mechanism, means'for supporting said carrier. member, saidsupporting means being likewise arranged for pivotal movement toward andaway from the fastening inserting mechanism and operating in conjunctionwith said carrier member to permit said, pins to be moved toward andfrom said mechanism while still located in the holes in the insole andlast without binding or tending to tip the insole out of its originalplane, and means for automatically returning the carrier member and thesupporting means to their initial positions after the pins have beenwithdrawn from the insole and last.

AIITGUST R. SCHOENKY.

